exam Maths Puzzle Numerical Ability

find smallest positive interger and the largest negitive integer that are upper and lower boundries.
P(x)= x^4 - 3x^3 - x^2 + 3x + 3

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exam Other Question

(4x)2=9/16 need help!
Use the BINOMIAL THEOREM to expand the binomial (2x+y)^6 and express the result in simplified form.